18520+3731 ES 2026BC

18h 52m 03.12s +37 30' 52.2" P.A. 331 sep 4.5 mag 12.80,13.30 dist. 353.36 pc (1152.66 l.y.)

Coord 2000
18520+3731
Discov num
ES 2026
Comp
BC
Coord arcsec 2000
18 52 03.12 +37 30 52.2
Date first
1923
Date last
2002
Obs
3
Pa first
340
Pa last
331
P.A. Now (θ)
331°
Sep first
5.1
Sep last
4.5
Sep. Now (ρ)
4.5"
Mag pri
12.80
Mag sec
13.30
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
+019
Sec motion ra
Pri motion dec
-020
Sec motion dec
Notes


Nature of this double is uncertain.



18520+3731 SYSTEM COMPONENTS

Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 67494 18520+3731 ES 2026 AB 1923 2002 3 111 20.5 7.34 12.80 5.46
Show 67494 18520+3731 ES 2026 BC 1923 2002 3 331 4.5 12.80 13.30 0.50 <===
Triple system
3 visible stars in this system



OTHER CATALOGS AND DESIGNATIONS

Precise pa
331.4
Precise sep
4.54
Spectr
B5n
Constellation
Lyra
SAO
67494
HIP
92590
Tycho2
3119-02078-1
HD
175081
BD
BD+37 3262
Distance
353.36
Distance ly
1152.66
last precise pa
331.4
last precise sep
4.54




WDS HISTORIC DATA

coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18520+3731 ES 2026 BC 2000 2 330 4.4 12.80 13.30 D 185203.12+373052.2
18520+3731 ES 2026 BC 2002 3 332 4.5 12.80 13.30 D 185203.12+373052.2

If you need more information about this double, apply for a data request form to the WDS.